Ibn Rajab Al-Hanbali writes:

“When Al-Fudhayl Ibn Iyaadh was asked about the difference between advicing and exposing, he said: “A believer covers up and advises [his or her fellow believers], whereas an evildoer exposes and humiliates [others].”
["Jami' Al-'Uloom wal-'Hikam", 77].

Abu Ad-Dardaa said:

“You will not become an aalim (scholar) until you become a mut’alim (student) and you will not become a muta’alim (student) until you act upon the knowledge you posses”.
["Iqtidaa-u al'ilmi al'amal", 29]

The Tawheed of the people of knowledge and the jamaa'ah of the Muslims is "I testify none is worthy of worship except Allaah (alone) and that Muhammad is the Messenger of Allaah". And the Tawheed of the people of falsehood is disputing about al-a'raad (incidental attributes) and al-ajsaam (bodies) and the Prophet (sallallaahu alayhi wasallam) was sent with the rejection of that.

Ibn Al-Jawzi wrote:

“When ‘Alee ibn al-Husayn died, they washed him and noticed a black mark on his back, so they (some of them) said: “What is this?” So they said: “He used to carry a sack of flour on his back during the night and used to distribute it to the poor and needy of the people of Madeenah.”["Sifat as-Safwah", 2/96].